dnl  Intel Pentium mpn_addmul_1 -- mpn by limb multiplication.

dnl  Copyright 1992, 1994, 1996, 1999, 2000, 2002 Free Software Foundation,

dnl  Inc.

dnl  This file is part of the GNU MP Library.

dnl

dnl  The GNU MP Library is free software; you can redistribute it and/or modify

dnl  it under the terms of either:

dnl

dnl    * the GNU Lesser General Public License as published by the Free

dnl      Software Foundation; either version 3 of the License, or (at your

dnl      option) any later version.

dnl

dnl  or

dnl

dnl    * the GNU General Public License as published by the Free Software

dnl      Foundation; either version 2 of the License, or (at your option) any

dnl      later version.

dnl

dnl  or both in parallel, as here.

dnl

dnl  The GNU MP Library is distributed in the hope that it will be useful, but

dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

dnl  for more details.

dnl

dnl  You should have received copies of the GNU General Public License and the

dnl  GNU Lesser General Public License along with the GNU MP Library.  If not,

dnl  see https://www.gnu.org/licenses/.

include(`../config.m4')

C P5: 14.0 cycles/limb

ifdef(`OPERATION_addmul_1', `

      define(M4_inst,        addl)

      define(M4_function_1,  mpn_addmul_1)

      define(M4_function_1c, mpn_addmul_1c)

',`ifdef(`OPERATION_submul_1', `

      define(M4_inst,        subl)

      define(M4_function_1,  mpn_submul_1)

      define(M4_function_1c, mpn_submul_1c)

',`m4_error(`Need OPERATION_addmul_1 or OPERATION_submul_1

')')')

MULFUNC_PROLOGUE(mpn_addmul_1 mpn_addmul_1c mpn_submul_1 mpn_submul_1c)

C mp_limb_t mpn_addmul_1 (mp_ptr dst, mp_srcptr src, mp_size_t size,

C                         mp_limb_t mult);

C mp_limb_t mpn_addmul_1c (mp_ptr dst, mp_srcptr src, mp_size_t size,

C                          mp_limb_t mult, mp_limb_t carry);

C

C mp_limb_t mpn_submul_1 (mp_ptr dst, mp_srcptr src, mp_size_t size,

C                         mp_limb_t mult);

C mp_limb_t mpn_submul_1c (mp_ptr dst, mp_srcptr src, mp_size_t size,

C                          mp_limb_t mult, mp_limb_t carry);

C

defframe(PARAM_CARRY,     20)

defframe(PARAM_MULTIPLIER,16)

defframe(PARAM_SIZE,      12)

defframe(PARAM_SRC,       8)

defframe(PARAM_DST,       4)

	TEXT

	ALIGN(8)

PROLOGUE(M4_function_1c)

deflit(`FRAME',0)

	movl	PARAM_CARRY, %ecx

	pushl	%esi		FRAME_pushl()

	jmp	L(start_1c)

EPILOGUE()

	ALIGN(8)

PROLOGUE(M4_function_1)

deflit(`FRAME',0)

	xorl	%ecx, %ecx

	pushl	%esi		FRAME_pushl()

L(start_1c):

	movl	PARAM_SRC, %esi

	movl	PARAM_SIZE, %eax

	pushl	%edi		FRAME_pushl()

	pushl	%ebx		FRAME_pushl()

	movl	PARAM_DST, %edi

	leal	-1(%eax), %ebx		C size-1

	leal	(%esi,%eax,4), %esi

	xorl	$-1, %ebx		C -size, and clear carry

	leal	(%edi,%eax,4), %edi

L(top):

	C eax

	C ebx	counter, negative

	C ecx	carry

	C edx

	C esi	src end

	C edi	dst end

	C ebp

	adcl	$0, %ecx

	movl	(%esi,%ebx,4), %eax

	mull	PARAM_MULTIPLIER

	addl	%ecx, %eax

	movl	(%edi,%ebx,4), %ecx

	adcl	$0, %edx

	M4_inst	%eax, %ecx

	movl	%ecx, (%edi,%ebx,4)

	incl	%ebx

	movl	%edx, %ecx

	jnz	L(top)

	adcl	$0, %ecx

	popl	%ebx

	movl	%ecx, %eax

	popl	%edi

	popl	%esi

	ret

EPILOGUE()